Credit Card Verification
Credit card verification is a security and validation process used to ensure that a credit card transaction is legitimate and authorized. It involves checking the card's details, such as the number, expiration date, and CVV, against issuer databases and using algorithms like Luhn to detect errors or fraud. This process is critical in e-commerce, payment gateways, and financial applications to prevent unauthorized charges and reduce fraud.
Developers should learn credit card verification when building applications that handle online payments, such as e-commerce platforms, subscription services, or financial apps, to ensure secure transactions and compliance with standards like PCI DSS. It's essential for implementing client-side validation to catch errors early and server-side checks to verify with payment processors, reducing chargebacks and enhancing user trust.